docs: def get_data(self, sheet, find=False, begin=1):
          """
          Extract data from sheet
          :param find: 查找模式.缺省为False.为True时,将进行递归查找
          :param begin: 开始行号
          """
          line = begin
          for row in sheet.rows:
              if self.match(row):
                  d = self.extract_data(sheet, line)
                  return d
              else:
                  if find:
                      line += 1
                  else:
                      break
          return